Valve



April 22 1924.; 1,491,236

A. HOILAND VALVE Filed Dec. 1.!1921 2 Sheets-Sheet 1 A. HOILAND prl 221924.

' VALVE Filed Deo. 1 1921 2 Sheets-Sheet 2 Si www .wm ,ww

lette LBERT HOILND, OF FARGG, NORTH DAKOTA;

VALVE.

.application lied December To all whom t may concern:

Pe it known that l, linearer HOLLAND, a citizen of the United. Statesyresiding at Fargo7 in the county ot Cass and State of North Dakota.,have invented new and use- Ylful improvement in Valves, of which theiollowing is a specification.

My invention relates to valves and has lor its object to provide a valvewhich is adapted upon opening the same to remain open until the pressureagainst which each valve operates has been suiiiciently reduced when thesaid valve automatically closes so that the valve becomes automaticallyreset.

i-inothcr Yobject of the invention is to provide a valve having` a headadapted after once being opened to be held in open position until saidcurrent ceases and to then automatically close and remain closed untilagain opened.

il still further object is to provide a valve ot the bail type having aseat with inclined surliaces leading to said seat and to provide amember 'for disengaging the ball oi' said valve from its seat androllingthe same up the inclined surface and so position the said ballthat the saine is held at the summit of said inclined surface by thecurrent or fluid passing through the valve7 said ball rolling down theinclined surface to its: seat upon the cutting off of the current oifluid through the valve.

The Aull objects and advantages oi my invention will appear inconnection with the detailed description thereoic and are particularlypointed out in the claims.

ln the drawings, illustrating the application or my invention in oneform Fig. 1 is a longitudinal sectional view of my improved valve.

ig. E2 is a plan sectional view taken on line 2 2 of igure 1.

Fig. 3 is a view similar to Figure 2 showing the parte in relativelyaltered positions.

Fig. el. isa sectional view of the device shown in Figure 1 taken online 1 4 or that figure, and showing the ball positioned on its seat.y

Fig. 5 is a sectional side view of another form of the invention.`

Fig. 6 is a view similar to Figure 5 showa the parts in alteredpositions.

lliy invention is adapted for use in connection with any device where itis desired to have the valve remain open until the contents of thereceptacle have been drained i, 192i. serial no. sienes.l

and .then to automatically close, and it is particularly adaptable foruse in connection with air brakes on railway trains. ln the above use itbecomes desirable after the e0 train has been stopped and the brakes setto have a device which when opened remains open until the entirequantity of air in the brake cylinders has been discharged and whiclresets itself and cuts oil' the escape 65 oit the air so that the brakeisin condition to be immediately operated after the entire amount oi airis exhausted from the cy1inders thereof.

`ln the form ci the invention shown `in 7c Figures 1 to I1 l haveindicated a casing A' yhaving two longitudinal cylindrical sections 10and 11 connected by a neck 12. At the two ends of the sections 10 and 11are screwed a pair of bushings 13 and 1d, each 75 of which is providedwith a cylindrical bore 15 extending completely through the same. Withinthe bores or the two bushin s'13 and 141 is slidably mounted a spindlegwhich is formed with a central head 17 andsha-nks 8o 18 and 19 issuingoutwardly 'from the ends of said heads. rihe Shanks 18 and19 are ofcircular cross section while the head 17 is oi rectangular formation,being of a width less than the sizeof the bushings 13 and 14; 85

seats and 81 formed on the interior of the e0 neck 12 at the lowerportion of the opening 82 through which this member 17 extends and onwhich the said member 1'? rides so that the same is always held incorrect position relative to the interior of the mecha c5 nism.Screwable upon each of the bushings 13 and 14 is a lock nut 16 whichserves to hold the said bushings in .fixed/relation tok the cylindricalportions 10 and 11 of the casing A. A stuiling box 2() attached to an100 outwardly extending neck 21 on each oi the bushings 13 and 111serves to form a tluid tight joint between the Shanks 18 and 19 ofspindle B and the interior of the casing A.

At the upper portion of casing A issuing outwardly from the neck 12` isattached a threaded member 22 which may be coupled to the device withwhich the valve is to be used, by ordinary pipes or fittings in theusual manner. rilhe interior of member 22 110 is drilled to form anozzle 23 which points directly downwardly and is positioned over thecentral portion of the head 17 of spindle B. Immediately below thenozzle 23 is formed a valve seat C which consists of a gasket 24 ofrubber or other suitable Inaterial which is held in place by a bushing25 screwable in a depending portion 26 of neck 12. Bushing 25 is formed'with a conical surface 27 which engages a corresponding surface on theneck 12 and is also formed with a conical surface 28 which forms theseat on which a ball 29 comprising the valve proper is adapted to rest.A hole 32 extends completely through the gasket 24 and the bushing 25 sothat when ball 29 is unseated from its seat 28 a clear passagewaybetween the interior is effected. Bushing 25 is held in place by meansof a lock nut 30 as best shown in Fig. 1.

The device for unseating the ball 29 is formed in the head 17 of spindleB as best shown in Figure 2. This construction consists of a rectangularlongitudinal slot 33 which is of a width suflicient to permit the ball29 to travel freely along the same. This slot terminates at both ends intwo shoulders 34 and 35 which are adapted to engage the said ball andforce the same off on its seat when spindle B is slided within itsbearings in the bushings 13 and 14. Upon the lower interior surface ofthe neck 12 isformed two inclined surfaces 36 and 37 which the ball 29is made to climb when the same is unseated. As soon as the said ball isunseated the air or other fluid rushes through the nozzle 23 and througheither of two openings 38 and 39 formed at the ends of the slot 33 andthrough the hole 32 in gasket 24 and bushing 25 and out of the device.The position of the parts at this stage is clearly shown in Figure 2 inwhich a ball 29 is shown on the summit of the inclined surface 36 andthe hole 32 is shown as registering with the opening 38 in head 17 Forautomatically returning the spindle B back to normal position I providetwo coil springs 40 and 41 which are seated against the ends of thebushings 13 and 14 at one end and against washers 42 and 43 positionedadjacent the ends of the head 17. rIhe compression of these springs maybe adjusted by screwing in or out the two bushings 13 and 14 andadjusting the lock nut 16 so that when the device is pushed inwardlyfrom either side by means of the shanks 18 and 19 the said deviceimmediately returns to its intermediate position such as is clearlyshown in Figure 1. After the ball 29 has been forced back to the summitof either inclined surfaces 36 or 37 the air rushing through the nozzle23 engages the side of the ball 29 and holds the same backward onaccount of the current of the same until the supply of air passingthrough said nozzle ceases. Head 17 having returned to normal positionby means of springs 40 or 41 hence does not obstruct the movement of theball 29 towards the seat C so that when the current of the fluid stops,ball 29 rolls by gravity back on to its seat and thereby effects aclosure of the valve. Upon again subjecting the valve to fluid pressurethe same is held closed and the ball 29 positioned upon its seat untilthe same is a second time disengaged by the head 17.

It can readily be understood that the device can be operated from eitherdirection by simply pushing either of the shanks 18 or 19 inwardly therequired amount. For adecting this movement I provide couplings 44 whichare secured to the ends of Shanks 18 and which are attached to operatinglinks 45 by means of which the said shanks may be manipulated. When itis required at any time to close the valve before the complete amount offluid has been exhausted and the current passing through the said valvechecked, the same may be accomplished by manipulating the spindle B inthe opposite direction from that required in unseating the valve. Insuch a case the shoulders 35 and 34 engage the ball and force the samedown hill until the ball becomes positioned over the seat C. As soon asthis occurs air pressure forces ball against the seat and a directclosure is affected.

rThe device shown in Figures 5 and 6 is similar to that indicated inFigures 1 to 4 differing principally in that the releasing mechanism isoperable through the exhaust port thereby eliminating the necessity of astuffing box in connection with this device. In this form a casing D isprovided which is formed with an interior globular chamber 50 whichterminates at one end in a threaded member 51 similar to member 22 ofthe other form of the invention. A gasket 52 and a bushing 53 similartoy gasket 24 and bushing 25 form a valve seat l5 on which a ball 54positioned within chamber 50 is adapted to seat. The threaded member 5lcommunicates through a horizontally positioned nozzle 55 with theinte-rior of chamber 50. The nozzle 55 is drilled from the exterior ofthe device through an opening 56 which is normally closed by a cap screw57 as clearly shown in Figure 6. A. hole 58 passes directly throughgasket 52 and 53 and brings the interior of chamber 50 in communicationwith the exterior. When ball 54 is seated upon the seat E the pressurewithin the chamber 50 is the same on all sides and no force exists whichwould cause the said ball to become unseated. On the contrary, thepressure in the vicinity of hole 58 being less than that within 'thechamber 50 the said ball is firmly seated and an effective closure ofthe valve produced. lVhen, how- Menace ever, the ball 5d is unseated bymeans to be presently described, the air rushes through the nozzle 55and directly engages the side of the ball, throwing the ball back intothe interior of chamber 50 as far as the same is permitted to travel,said air escaping through the opening r58 to the exterior.

The device for unseating ball 54; com'- prises a slender pin 59 formedon the central portion of an arm 60 which is pivoted at 63 to adepending support 6l secured to casing D. This pin passes freely andloosely for a distance into the interior of the ball 5d througa a hole62 drilled partly through the same. The position ci' the pivot 63 issuch that when the said arm is oscillated in one direction pin 59 isswung to the leiit and the ball 54 forced to travel up an inclinedsurface 6d to effect an opening of the valve. ln this position the rushci air through noz- Zle 55 against the ball 5d holds the same in thesaid position as long as the current of air passes through the valve. Assoon as the current of air ceases the weight of ball 5a causes the ballto drop back again on its seat proper and to eii'ect the necessaryclosure.

For operating pin 59 I provide a horizontallypositioned lever 65 whichis pivoted at 66 to a depending lug 67 formed on the support 6l.v Thisarm is formed with two iingers 68 and 69 which when the said arm isoscillated are adapted to engage 'the protruding ends '70 and 7l of arm60 and to oscillate the said arm and so alter the movements of the ball54. Arm 65 is formed with two upstanding portions @and 73 to whichnecessary operating links lll may be connected. When it is desired toclose the valve before the fluid current passing through the same hasbeen cut oil the lever 65 may be operated so that ngers G8 engageportion 7l or" lever `6() and draws the ball backward. When the balltaires its position over the seat E the pressure in the chamber 50becomes equalized on all sides causing the said ball to become seatedand the valve to become closed.

The advantages of my invention are manii'est. At the present time onrailway trains considerable time is lost while the air brakes arereleased, in holding the release valve open until the air is dischargedfrom the brake cylinders. This takes all the way from one to fourminutes for each car which on a train having a number oi cars consumes aconsiderable amount of time and necessitates unnecessary halting of thetrain. lilith my improved invention the valve is simply opened by theoperator who then passes on to the next valve. After the air has beencompletely exhausted the valve automatically closes and the same isseated and in its closed position so that the brakes may be used at anytime subsequent thereto.

Tn accordance with the patent statutes T have described the principlesof operation of my invention together with the apparatus which .l nowconsider to represent the best embodiment thereof', but T desire to haveit understood that the construction shown is only illustrative and thatthe invention can be carried out by other means and applied to vusesother than those above set forth within the scope of the followingclaims.

l. A valve comprising a seat, a runway leading up to said seat and avalve member movable along said runway and adapted to become seated uponsaid seat and inlet and outlet passageways for directing the iluidagainst said valve when the same has been openedy to hold the valve uponsaid runway away from said seat.

A valve comprising a valve chamber, a valve seat, an outlet passagewayconnected with said valve seat, an inlet passageway positioned inalignment with said outlet passageway and a valve member adapted tobecome seated upon said seat and to be held so seated by the duidpressure within said valve, said valve member being adapted to hold awaytroni said seat by the inrush ilow of iiuid into the valve chamber afterthe valve has been opened.

3. Avalve comprising a valve chamber, a vertical outlet passagewayformed in said valve leading into said valve chamber, a seat formed inthe upper portion of said passageway, a valve closure member adapted tobe seated upon said seat, means for unseat-ing said valve and an inletpassageway adapted to direct the inilowing current of iluid against saidvalve member to hold the said member away from said seat once the valvehas been opened.

d. A valve comprising a casing, a seat within said casing, a valvemember adapted to become seated upon said seat, a head positioned withinsaid casing for unseating said valve having an opening, said valve beingpositioned within said opening and means for leading the valve away fromsaid opening in either direction oi movement of said head.

5. A valve comprising a casing, a seat within said casing, a valvemember adapted to become seated upon said seat, a head positioned withinsaid casing for unseating said valve havin@F an opening, said valvebeing positioned within said opening and means for leading the valveaway from said opening in either direction of movement of said head, andnotches in said head adjacent points of engagement of said head withsaid valve member for permitting the dow of duid around said valvemember on all sides thereof.

6. A valve comprising a seat, a ball closure member, means for unseatingsaid ball closure member, means for directing the fluid current throughsaid valve to hold said ball member unseated, and means for causing saidball member to travel back towards its seat when the iiuid current hasbeen checked.

7. A valve comprising a seat, a ball closure member, means for unseatingsaid ball closure member, means 'for directing the iuid current throughsaid valve to hold said ball member unseated, and an inclined run- Wayfor causing said ball member to travel back towards its seat when thefluid current has been checked.

8. A valve comprising a seat, an inclined run-Way leading to said seat,a ball closure member adapted to travel along said run- Way, a slottedmember adapted to surround said ball and to engage the same 'forunseating the ball, and means 'for directing the iuid current againstthe ball to hold the same at the summit or" said run-Way While the fluidis passing through the valve.

9. A valve comprising a neck, a pair of cylindrical members attached tosaid neck, a slidable spindle having shanks passing through saidcylindrical portions, a head formed on said slidable member andpositioned in said neck, a slotformed in said head portion, a seatformed in the bottom of said neck below said slot having an openingpassing through the same, inclined run-Ways formed along said slot insaid neck leading to said seat, a ball adapted to travel along saidrun-Ways and to be engaged by said slidable member, and a nozzlepositioned over said slidable member adapted to discharge a fluidthrough said slot to hold the ball unseated While the said iiuid ispassing through the valve.

10. A. valve comprising a neck, a pair of cylindrical members attachedto said neck, a slidable spindle having Shanks passing through saidcylindrical portions, a head formed on said slidable member andpositioned in said neck, a slot formed in said head portion, a seatformed in the bottom of said neck belon7 said slot having an openingpassing through the same, inclined. run- Ways formed along said slot insaid neck leading to said seat, a ball adapted to travel along saidrun-Ways and to be engaged. by said slidable member and a` nozzlepositioned over said slidable member adapted to discharge a fluidthrough said slot to hold the the ball unseated While the said 'fluid ispassing through the valve, and auxiliary notched openings formed in theends of said slot adapted to register With said seat openings when saidslidable member has disengaged the ball *from the seat to :torni apassage- Way from the nozzle through the said opening.

ll. A valve comprising a seat, a pair of inclined runways leading tosaid seat, a closure member movable along said run-Ways and means forunseating said valve and for moving the same in either direction alongeither of said run-Ways to the summit thereor' or back again to saidseat.

12. A valve comprising a valve seat, a closure member for said valveseat, a movable member adapted to move in several direc tions and meansoperated by said movable member for unseating said valve in any o themovements of said member.

13. A valve comprising a valve seat, a closure member for said valveseat, a movable member adapted to move in a right or left hand directionand means operated by said movable member Jfor unseating said valve Whensaid movable member is moved in either direction.

ln testimony whereof I aix my signature.

ALBERT HOILAND.

